package com.itcast.mapper;

import com.itcast.pojo.Dept;
import org.apache.ibatis.annotations.*;

import java.util.List;

@Mapper
public interface DeptMapper {
    //方式一 手动结果映射
//    @Results({
//            @Result(column = "create_time",property ="createTime" ),
//            @Result(column = "update_time",property ="updateTime")
//    })
//    @Select("select id,name,create_time,update_time  from dept order by update_time desc")
//    List<Dept> findAll();
    //方式二 使用别名
//    @Select("select id,name,create_time as createTime,update_time as updateTime from dept order by update_time desc")
//    List<Dept> findAll();

    @Select("select id,name,create_time,update_time  from dept order by update_time desc")
    List<Dept> findAll();

    @Delete("delete from dept where id = #{id}")
    void deleteDeptById(Integer id);

    @Insert("insert into dept(name,create_time,update_time) values (#{name},#{createTime},#{updateTime})")
    void addDept(Dept dept);

    @Select("select id,name,create_time,update_time  from dept where id = #{id}")
    Dept findDeptById(Integer id);

    @Update("update dept set name = #{name},update_time = #{updateTime} where id = #{id}")
    void updateDeptById(Dept dept);
}
